| 摘要 |
<p>A hydraulic pump, capable of generating a satisfactorily high pressure in a pocket of a static bearing in a region in which a suction side is switched to a discharge side, to prevent the individual contact of sliding surfaces, comprising a driving shaft inclined relatively to an axis of rotation of a cylinder block, a rotary board member rotating unitarily with the driving shaft and linked to a plurality of pistons, a fixed sliding surface on a housing side which slidingly contacts a rear surface of the rotary board member, pressure pockets formed in the sliding surface of the rotary board member correspondingly to the positions of the pistons, pressure passages for introducing a fluid pressure from the interior of cylinders to the pressure pockets via the pistons, and a pressure introducing means for introducing a high-pressure fluid into the pockets, which are moved with the rotary board member along the fixed sliding surface in a position in which a cylinder is switched from a suction side to a discharge side.</p> |
